62d874f203
Some procedure pointers and EXTERNAL procedures have neither explicit interfaces nor result types; these procedures are obviously not known to be functions, but they could be, so semantics must not assume that they are necessarily subroutines. Refine the procedure pointer / dummy procedure compatibility check to handle these more ambiguous cases and not elicit inappropriate error messages. Differential Revision: https://reviews.llvm.org/D129674
39 lines
1008 B
Fortran
39 lines
1008 B
Fortran
! RUN: %python %S/test_errors.py %s %flang_fc1
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! Test that the interface of specific intrinsics passed as dummy arguments
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! are correctly validated against actual arguments explicit interface.
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intrinsic :: abs, dabs
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interface
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subroutine foo(f)
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interface
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function f(x)
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real :: f
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real, intent(in) :: x
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end function
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end interface
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end subroutine
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subroutine foo2(f)
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interface
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function f(x)
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double precision :: f
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double precision, intent(in) :: x
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end function
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end interface
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end subroutine
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end interface
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! OK
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call foo(abs)
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! OK
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call foo2(dabs)
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!ERROR: Actual procedure argument has interface incompatible with dummy argument 'f=': function results have incompatible types: REAL(4) vs REAL(8)
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call foo(dabs)
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!ERROR: Actual procedure argument has interface incompatible with dummy argument 'f=': function results have incompatible types: REAL(8) vs REAL(4)
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call foo2(abs)
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end
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